Viper

HISTORY:
Not much information was ever revealed about Viper. She was in love with Captain Germany (the German's Captain America), and she was a member of the Unbeatables team. When the Unbeatables fought the Ultimates, Captain Germany ordered Viper to go into a warehouse to see what caused a noise. When she entered the room, she was attacked by Spider-man, who was looking for revenge because the Abomination (leader of the Unbeatables) captured his Aunt. Unveiling her dark powers, she beat down Spider-man. Suddenly, the Hulk entered the warehouse, crushing her with his fist, killing her instantly.